[PD] lowest latency ARM board for Pd

Olm-e ol at ogeem.be
Thu Nov 18 11:56:24 CET 2010


thanks for all this, will try to find some time this week for this...

(building on the openmoko is a thing I'll do when I have more experience
with the system ;) )

Ol.

ogeem.be
okno.be

cosmin O_O wrote:
> Ok, there is also a full pd-extended version for armel (except
> pix_kaleidoscope and curve3d) there:
>
> http://www.servideo.org/debian/
>
> Cosmin
>
> ------------------------------------------------------------------------
> CC: ol at ogeem.be; pd-list at iem.at
> From: hans at at.or.at
> To: horiacosmin at hotmail.com
> Subject: Re: [PD] lowest latency ARM board for Pd
> Date: Wed, 17 Nov 2010 11:22:01 -0500
>
>
> This would be great to have as a wiki page on puredata.info, thanks
> for making the build.
>
> .hc
>
> On Nov 17, 2010, at 9:27 AM, cosmin O_O wrote:
>
>     Hi,
>
>     That's simple:
>
>     Install pd-extended (Armel version)
>
>
>     There is no OpenGL support on the Freerunner so Gem, pdp, pidip
>     are not compiled on this version.
>
>
>
>     1/ Install dependencies:
>
>     wget http://www.debian-multimedia.org/pool/main/d/debian-multimedia-keyring/debian-multimedia-keyring_2008.10.16_all.deb
>
>     dpkg -i debian-multimedia-keyring_2008.10.16_all.deb
>
>     nano -w /etc/apt/sources list
>
>     and add: "deb http://www.debian-multimedia.org lenny main non-free"
>
>     then:
>
>     apt-get install x-ttcidfont-conf tcllib libfftw3-3 libflite1
>     libjack0 libmp3lame0 libogg0 libspeex1 libvorbis0a libvorbisenc2
>     libvorbisfile3 tcl8.5 tk8.5 
>
>
>     2/ Install Pd-extended for armel
>
>     wget http://www.servideo.org/debian/Pd-0.42.5-extended_light_armel.deb
>
>     dpkg -i Pd-0.42.5-extended_light_armel.deb
>
>     Note that if you had previously troubles with the dependencies of
>     pd-extended, make a "dpkg -P pdextended"
>
>     3/ go to:  
>
>     /usr/share/applications/pd-extended.desktop
>     and replace 
>     "Exec=pasuspender -- /usr/bin/pdextended -alsa %F"
>     by:
>     "Exec=pdextended -alsa" (<-- depending the space left, you should
>     install also alsa-base for that)
>     or by:
>     "Exec=pdextended -oss" (<-- my choice)
>
>     4/Run Pd-extended or puredata on the Freerunner:
>
>     a/ Go to Main Menu > Applications > QX
>     b/ Select options (white file on the bottom left) and click
>     "favourites"
>     c/ Select pd-extended
>     d/ Quit QX and come back to QX
>     e/ Select "pd-xextended" and set on options the "settings" like
>     for example: "prevent suspending", "Prevent screen diming", "Use
>     Window Manager" and "Full screen" and save.
>     f/ Select pd-extended
>     g/ Launch pd-extended with Options > Launch.
>
>
>     If you want to install puredata instead of pd-extended:
>
>     apt-get install puredata
>
>
>     Best,
>
>     Cosmin
>
>
>
>
>     > Date: Wed, 17 Nov 2010 12:58:45 +0100
>     > From: ol at ogeem.be <mailto:ol at ogeem.be>
>     > To: pd-list at iem.at <mailto:pd-list at iem.at>
>     > Subject: Re: [PD] lowest latency ARM board for Pd
>     > 
>     > I would be happy to know how you did install pd on your
>     freerunner... I
>     > did tried to install from rep (using debian QText v28) and it doesn't
>     > start, PDa seems too old to install (need osso-esd wich is not
>     available...)
>     > 
>     > I had been able to install it before but not anymore :/
>     > 
>     > any hints ?
>     > 
>     > tks
>     > 
>     > Ol.
>     > 
>     > ogeem.be
>     > okno.be
>     > > Subject: Re: [PD] lowest latency ARM board for Pd
>     > > To: cosmin O_O <horiacosmin at hotmail.com
>     <mailto:horiacosmin at hotmail.com>>
>     > > Cc: pd-list at iem.at <mailto:pd-list at iem.at>
>     > > Message-ID: <4CDD2B53.9050002 at iem.at
>     <mailto:4CDD2B53.9050002 at iem.at>>
>     > > Content-Type: text/plain; charset="iso-8859-1"
>     > >
>     > > On 11/12/2010 11:11 AM, cosmin O_O wrote:
>     > > 
>     > >> I don't know if I done the good way of measurments, but I've
>     only choose the "10ms" option on audio buffer and test some
>     patches to see if the sound was correct.
>     > >> And it was (without cranks).
>     > >>
>     > >> 
>     > >
>     > > ah i see.
>     > > the "10ms option" does not mean so much. it only affects the
>     buffer Pd
>     > > uses internally; the audio-subsystem will add latency on top of
>     that.
>     > >
>     > > the only reliable way to test latency is to measure it (by
>     means of cables).
>     > >
>     > > which OS are you running on the FreeRunner? FSO? android?
>     > >
>     > > fgamr
>     > > IOhannes
>     > >
>     > > -------------- next part --------------
>     > 
>     > 
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